> The lawyer would get totally absorbed in devising a strategy for winning a case, and would stay up all night enmeshed in the details. “It was like being in combat,” he said. He felt fully alive, and like nothing else mattered. But when the case finished, win or lose, he would lose his energy and sense of purpose.

This sounds like me but with programming. It's the one thing I can always do and focus on no matter how the rest of my life is going. But outside of it I constantly need to push myself to do anything.